The pagers killed a total of twelve people; which included four children.

That's a pretty awful ratio.

The pager detonations were weak enough to be effectively nonlethal unless you're especially vulnerable. That's how you end up with such a low death to injury ratio in the first place.

So per the KPI metric you've chosen, making it more lethal and more dangerous to bystanders would have been better.

Even among the injuries, you're still looking at an awful ratio, since Hezbollah had mostly migrated these devices out of their combatants in favor of newer models, and they were mainly in the hands of civilians.

And all of this is ignoring the blatant international law violation against booby trapping. This was very clearly a war crime.

For future reference, the specific articles:

Common Article 3; GC I Art. 12 & 18; GC III Art. 13; GC IV Arts. 27, 32 & 51; AP I Arts. 48, 51(2–5), 57 & 54; CCW Amended Protocol II Art. 7(2) of the Geneva Conventions.

The point is that such preposterously stupid military means are not preventing the continuation of blood-shed, and if you are saying that exploding pagers are a perfectly acceptable means of executing military goals, then .. whats next .. are Israeli citizens expected to live under the continuous threat of exploding vibrators and vaporizers, now, too?

Does the IDF issue vibrators to their soldiers?

I wouldn’t be surprised to learn they do, but that’s not the point. If not vibrators, then wireless headphones or e-book readers .. the list of devices now potentially ‘acceptable for use in acts of violence by hostile actors’, set by the Israeli precedent, is near infinite.